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Edit this profileAt a glance
- 1 Barnes Jewish Hospital Plz, Div Pa Anatomic and Molecular Path, Saint Louis, MO 63110
About Dr. Frater
Based in Saint Louis, MO, John L. Frater, MD is listed in the NPI registry under anatomic & clinical pathology. John graduated from University of Toledo College of Medicine in 1996. John is also listed as specializing in hematopathology. According to Medicare claims data, John cared for 1,696 Medicare patients across 3,091 services. The services billed most often include special stained specimen slides to examine tissue, each additional procedure, special stained specimen slides to examine tissue including interpretation and report, and evaluation of specimen enzymes. NPI 1407873920 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (314) 362-5641
- Email not available
Practice Locations
1 BARNES JEWISH HOSPITAL PLZ DIV PA ANATOMIC AND MOLECULAR PATH
Saint Louis, MO 63110
Conditions Evaluated or Diagnosed
Within Anatomic & Clinical Pathology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Autoimmune & Joint
Blood cancer
Blood chemistry
Blood Disorders
- Bleeding Disorders
- Blood Clotting Gene Mutation
- Hemochromatosis
- High White Blood Cell Count
- Iron-deficiency anemia
Blood disorders
Cancer & Tumors
- Breast Cancer Biopsy Findings
- Leukemia
- Lipoma
- Prostate Cancer Biopsy Results
- Suspicious Lung Spot
- Swollen Lymph Nodes
Cervical & Women's Health
Cervical Health
Digestive pathology
Digestive System
- Abnormal Liver Enzymes
- Celiac disease
- H. pylori infection
- Inflammatory bowel disease
- Precancerous Colon Polyps
Hormones
Hormones & Metabolism
Infections
Infectious disease
Kidney & Urinary
Liver pathology
Prostate
Skin
Skin pathology
Urine & kidney
Procedures & services
Pathology Consultations
Biopsy & Tissue Testing
- Bone Marrow Biopsy Testing
- Colon Polyp Biopsy Examination
- Fine Needle Aspiration Biopsy
- Frozen Section During Surgery
- Skin Biopsy Lab Review
- Special Tissue Staining
- Thyroid Biopsy Examination
Blood chemistry
Cancer & Genetic Testing
- Chromosome And Genetic Testing
- Flow Cytometry Test
- Liquid Biopsy
- Tumor Biomarker Testing
- Tumor Marker Testing
Cancer screening
Cardiac testing
Cervical & Women's Health
Fertility testing
Hormone testing
Immunology
Infection & Microbiology Tests
- Blood Culture Test
- Colon cancer screening consult
- H. Pylori Breath Test
- STI and STD Screening
- Urine sediment test
Infectious disease
Inflammation testing
Post-Mortem & Forensic
Routine blood testing
Routine Blood Tests
- Blood Clotting Test
- Cholesterol screening
- Hemoglobin A1c Test
- Kidney Function Blood Test
- Liver Function Blood Test
- Routine blood work
- Thyroid Blood Test
Specialty Lab Panels
Tissue biopsy
Toxicology
Transfusion testing
Urine testing
Procedures Most Often Billed to Medicare
3,091 services · 1,696 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
639 | More than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
505 | More than most peers in Anatomic & Clinical Pathology |
| Evaluation of specimen enzymes | Lab test | 88319 |
382 | Too few peers to compare |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
382 | As often as other peers in Anatomic & Clinical Pathology |
| Flow cytometry technique for dna or cell analysis, 16 or more markers | Lab test | 88189 |
203 | More often than most peers in Anatomic & Clinical Pathology |
| Preparation of tissue for examination by removing any calcium present | Lab test | 88311 |
192 | More than most peers in Anatomic & Clinical Pathology |
| Bone marrow, smear interpretation | Lab test | 85097 |
174 | More than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
125 | As often as other peers in Anatomic & Clinical Pathology |
| Microscopic genetic analysis of tumor, manual | Lab test | 88360 |
100 | More often than most peers in Anatomic & Clinical Pathology |
| Blood smear interpretation by physician with written report | Lab test | 85060 |
73 | More often than most peers in Anatomic & Clinical Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other anatomic & clinical pathology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other anatomic & clinical pathology specialists in Saint Louis 6
Same specialty, same city.
More connections — 15 related providers in 2 groups
Trained at University of Toledo College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1996 at University of Toledo College of Medicine 7
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Frater?
Dr. Frater is an anatomic & clinical pathology in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Frater's address?
Dr. Frater is listed at 1 Barnes Jewish Hospital Plz Div Pa Anatomic and Molecular Path, Saint Louis, MO 63110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Frater?
The number on file is (314) 362-5641. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Frater's NPI number?
Dr. Frater's National Provider Identifier is 1407873920. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Frater train?
Dr. Frater attended University of Toledo College of Medicine, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Frater been practicing?
Dr. Frater has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Frater perform?
According to Medicare billing data, Dr. Frater the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Frater confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Frater. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.